2008 National Seismic Hazard Maps-Fault parameters
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Fault Name State
Santa Monica, alt 1 California
GEOMETRY
Dip (degrees) 75
Dip direction N
Sense of slip strike slip
Rupture top (km) 0
Rupture bottom (km) 18
Rake (degrees) 30
Length (km) 14
MODEL VALUES
Slip Rate 1
Probability of activity 1
  ELLSWORTH HANKS
Minimum magnitude 6.5 n/a
Maximum magnitude 6.60 6.40
b-value 0.8 n/a
Fault Model Deformation
Model
Char Rate1 GR-a-value1 Weight
UnStitched 2.1 8.10e-04 / 1.62e-03 2.224 / NA 0.50
1 1st Value is based on Ellsworth relation and 2nd value is based on Hanks and Bakun relation
Comments
Published slip rate (0.3mm/yr; Clark and others, 1984) is for Potrero Canyon fault, a branch of Santa Monica fault zone. Slip rate of 1mm/yr is based on 2 assumptions: (1) H:V is 1:1 and (2) slip rate for Potrero Canyon is half of entire Santa Monica fault.